It featured mosaic floor reproductions, sculptural fragments, and sparse furnishings, all combining to achieve his trademark brand of modern historicism. Robsjohn-Gibbings' look was widely emulated, and from 1943-56 he worked as a designer for the Widdicomb furniture company in Grand Rapids, Michigan.

In 1960, he met Greek cabinetmakers Susan and Eleftherios Saridis, and together they created the Klismos line of furniture, which drew heavily on classical forms. It is still in production. Robsjohn-Gibbings eventually moved to Athens, where he became designer to Aristotle Onassis.

His honors include the 1950 Waters Award, and the 1962 Elsie de Wolfe Award.